OOAD Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

OOAD Interview Questions

Questions Answers Views Company eMail

If a method definition has been specified in class , its base class , and the interface which the class is implementing, which definition will be picked if we try to access it using interface reference and class object?

946

What is difference between encapsulation and abstraction?

957

Difference between encapsulation and data hiding ?

851

Difference between abstraction and implementation hiding ?

1047

What are the features of encapsulation ?

943

Difference between composition and inheritance ?

917

Are constructors inherited? Can a subclass call the parent's class constructor? When?

954

Can we reduce the visibility of the inherited or overridden method ?

970

Which of the following is tightly bound ? Inheritance or composition ?

1 1587

Does a class inherit the constructor of its super class?

904

How many methods do u implement if implement the serializable interface?

903

What does the “abstract” keyword mean in front of a method? A class?

933

How many methods are there in the externalizable interface?

967

What interface must an object implement before it can be written to a stream as an object?

1020

What does it mean that a method or class is abstract?

908

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Un-Answered Questions { OOAD }

What are inner classes and what is the practical implementation of inner classes?

841

What is Polymorphism, overloading, overriding and virtual?

1039

State some of the advantages of object oriented programming?

1059

What are sealed modifiers?

1017

How do we implement serialization actually?

891

What is overriding?

982

What is meant by overloading functions and operators?

985

What is garbage collection(gc)?

931

Differentiate between overloading and overriding.

1055

What is the use of interface?

1016

If a method definition has been specified in the base class and the interface which the class is implementing, which definition will be picked if we try to access it using interface reference and class object?

910

Explain about object oriented databases?

976

What is the difference between new and override?

962

What are the interfaces you used in beans?

973

Explain about polymorphism?

989

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